TM 5-3805-290-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 2. Electrical System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Check for open turnlamp switch power 1. If battery voltage is not present,
8.
One Service Stoplamp or
circuit.
temporarily replace electronic flasher
One or More Turnlamps
(a) Disconnect wiring harness from
located under instrument cluster (WP
Are Inoperative -
turnlamp switch (WP 0051 00).
0051 00). If problem still exists,
Continued.
(b) Turn battery disconnect switch
reinstall old electronic flasher and go to
and engine start switch to ON
Test 6.
position (TM 5-3805-290-10).
2. If battery voltage is present, replace
(c) Select service drive mode on main
turnlamp switch (WP 0051 00).
light switch (TM 5-3805-290-10).
(d) Measure voltage at switch
between wiring harness pin 1,
circuit 537 (GN), and ground.
6. Check for open turnlamp flasher power 1. If battery voltage is not present,
circuit.
temporarily replace turnlamp relay
(a) Disconnect wiring harness from
(WP 0054 00). If problem still exists,
turnlamp flasher located under
reinstall old turnlamp relay and go to
instrument cluster (WP 0051 00).
Test 7.
(b) Turn battery disconnect switch
2. If battery voltage is present, there is an
and engine start switch to ON
open circuit between flasher and
position (TM 5-3805-290-10).
turnlamp switch. Replace wiring
(c) Select service drive mode on main
harness in question (WP 0169 00 thru
light switch (TM 5-3805-290-10).
WP 0175 00).
(d) Measure voltage at turnlamp
flasher between wiring harness
pin, circuit 695 (OR), and ground.
7. Check for open relay power circuit.
1. If battery voltage is not present, there
(a) Remove turnlamp relay (WP 0054
is an open circuit between turnlamp
00).
relay and worklight fuse. Replace
(b) Turn battery disconnect switch
wiring harness in question (WP 0169
and engine start switch to ON
00 thru WP 0175 00).
position (TM 5-3805-290-10).
2. If battery voltage is present, go to Test
(c) Select service drive mode on main
8.
light switch (TM 5-3805-290-10).
(d) Measure voltage at turnlamp relay
between wiring harness pin 1,
circuit 127 (OR), and ground.
0008 00-31
